Fly screen



Dec. I21.1926. f 1,611,250

s. J. SMITH l FLY' SCREEN Filed sep. 1. 1925 Patented"Deia` 2l, 1926.

SQUIRE LrAMEs SMITH', or NIAGARA. FALLS, nnw YQRK.

" Y rnY.- SCREEN.

Application nled Septemlier,

Y My invention relates to improvements in fly screens, and the object of the invention, is to devise simple means whereby flies. at- Y tracted to the innerV face of the screen lwill 5 naturally andreadily passout through the screen to the outer atmosphere, and it con,-V sists essentially of a frame, an upper screen mesh portion and a loweruscreen` mesh por-yv tionhaving theiropposing 'edges extending horizontally of .the frameA and separated apart in horizontal alignment one to they other as hereinafter more particularly eX- plained. Y y v Fig. l is a perspective View 'of a portion of a fly screen showing my device incorporated therein. Y

Fiffq2 is al sectional View through afi n x, n n

screen. y

In they drawings like characters of referencev indicate corresponding parts in each ligure.. j y

1 indicates a frame. 2 is a recess formed in each' side member of the -frame. 3 is an upper screen mesh portion which issecured to the upper portion of the frame preferably by stripping 4: and extends downward so as to enter the recess 2 and be secured along its curved edge 5. i!

- 6 is la lower screen mesh portion also se-` Vcured to the frame by the stripping 4 eX- tending upward from ythe bottom of. the i'rame to thehorizontal wall of the notch 2. It will thus be seen thatthe upper edge 6X of the lower screen portion extends between the outer ends or' the bottom walls of the recesses 2 and the opposing lower edge 3X of the upper screen portion 3 between the inner 1, 1925. serial No. 53,909.

ends of rthe bottoni Wall ofthe notches 2 i, thereby separating such edges 3X and 6X horizontally apart to form an Vunobstructed 40 opening through which iies attracted to the y inner 'face oi the lower vscreen portion 6 will readily pass through. i i y Itis welllnio wn that Vflies will always pass upward through an opening, but will'never 45 pass downward. and therefore when they passoutward through the opening'V formed by the spacedapart screenedges 3X and 6X i will never return inward through the screen n y into the interior of the dwelling. Also flies .will not pass throughY a 4passage either up- Y ward or downward such as would bey formed by the over-lappingfof the screen edges 3 and 6X particularly'if such passage is inthe slightest degree obstructed and therefore a tree opening must be provided such `as applicantdescribes in order to'permit the flies to pass outward. Y

`From this description itwill be seen .thatl I have Vdevised Very simple `orrn of fly.60 *I screen through which iiies will readily pass i from the interior of the dwelling to the Aouter atmosphere and thereby quickly clear such dwelling of anylies therein.

What I claim as myin'venti'on is: s A liy screen comprising a vframe, vertical side bars formingtriangular recessesat each j side of the frame. and a mesh screen divided in a line with the baseof the recesses and Y having the upper portion separated horizon.-

tally Afrom thel-ower portionand secured to` the inclined side of the recess.

sQUinE JAMES SMITH-.- 

